baber/WOPTO huggingface dataset:
Patent GB-1188789-A (GB)
Title: Electrical Terminal
IPC: H01R9/22
Filed: 1969-03-27
Abstract: 1,188,789. Electric couplings. AMP Inc. 27 March, 1969 [26 April, 1968], No. 15982/68. Heading H2E. Electric terminals 10 on a connection board 4, 6 for multicore telephone cables each comprises plates 12, 14, plate 14 having slots 25 whose edges pierce the insulation and contact the central conductors of cores inserted in the slots and plate 12 having an edge 30 on which the unwanted ends of the cores may be trimmed down. A further plate 16 has slightly wider slots so that a although it does not contact the conductor of a core, it does pierce the insulation, and thus provides a strain-relief device., - A tool '(Figs. 6, 7, not shown) having a head provided with spaced parallel arms may be used for driving in and severing a core. Plate 16 may have an integral tongue which may be connected to a printed circuit. The terminals 10 are formed from sheet metal, and selected ones may be interconnected. Terminals TO are secured by legs 17, 19 between a ribbed frame 6 and a similarly ribbed base 4, of acrylonitrilebutadiene-styrene, which are held together by latches (68, 69, Fig. 2, not shown). Latches (78) are provided for a detachable cover. Entry ports (58) for the telephone cables have recesses (92, Figs. 11, 12, not shown) for securing cable clamping clips (84). In a further embodiment (Figs. 13-21, not shown) a base (98) mounts a perpendicularly projecting frame by latches (102). The frame comprises a stack of columns (104) latched together, which have slots (112) for mounting double-ended -terminals (150), each end of which is similar to terminal 10 (Fig. 3). The ends may be angled away from the base. Alternatively (Figs. 22- 24, not shown), the severing edge may be removed from one end so that a core may interconnect a plurality of terminals.
Patent GB-1013620-A (GB)
Title: Subscriber's equipment in an electronic switching system
IPC: H04M1/00
Filed: 1964-04-17
Abstract: 1,013,620. Automatic exchange equipment; reducing crosstalk; transistor amplifier circuits. STANDARD TELEPHONES & CABLES Ltd. April 17, 1964 [April 18, 1963], No. 15984/64. Headings H3T, H4K and H4R. In an arrangement of subscriber's substation and line circuit connected with a two-wire go path and a two-wire return path, transistor amplification is provided and cross-talk is minimized. In Fig. 4, which shows the go-path sections of substation and line circuit, the carbon microphone 111 is connected in series with the emitter load of transistor 113 and is coupled to the base by capacitor 114. Transistor 113 is a paraphase amplifier the emitter and collector loads of which are made equal; these loads including the resistances 147, 148 of each leg of the line. The collector load is varied to make the adjustment which produces equal signal voltages of opposite phase on each leg. In the line circuit transistor amplifiers 131, 132, with a common collector load 133 are adjusted so that the ratios of their current amplification factors to emitter loads are equal. The emitter load 138 of transistor 131 is used to make the adjustment. The signal output across common collector load 133 is employed via capacitors 145, 146, to modulate pulses transmitted by multiplex gate 104E. On-hook and off-hook, and dialling impulses are signalled from switch 112 of the substation which when in the on-hook position A allows diode 143 in the line circuit to clamp the output at - 3 volts and when in the off-hook condition allows diode 142 to clamp the output at - 6 volts. In Fig. 5, which shows the return path sections of the substation and line circuit, amplitude modulated signals from multiplex gate 104R are demodulated in lowpass filter 149 and supplied to the single-ended input of transistor amplifier 151, 152, the push-pull output from which supplies the line to the substation circuit. Balance of the line is obtained by making the current gain of PNP transistor 151 equal to the gain of transistor 152, out of balance produced from the collector loads 157, 158 being restored by a capacitor to earth on one of the line wires. Capacitor 162 symbolizes the inter-line capacity. The substation presents either the bell 165 or the receiver 166 masked by the symmetrical attenuator 167 to 171.
Patent GB-787198-A (GB)
Title: Improvements in or relating to card-feeding apparatus
Inventor: DAVY JOHN COLIN
IPC: G06K13/077
Filed: 1955-06-03
Abstract: 787,198. Feeding sheets &c. POWERSSAMAS ACCOUNTING MACHINES. Ltd. June 1. 1956 [June 3, 1955], No. 16051/55. Class 100(1) [Also in Group XIX] Card-feeding apparatus for advancing a card intermittently to and from a succession of equi-spaced stations comprises a number of pusher elements 9, at least one for each station, mounted one in advance of the other on a feed-bar 10 common thereto and supported for reciprocating movement beneath the surface 6 over which cards move, each pusher element 9 being pivoted on the bar 10 at 28 and controlled by a spring 29 which urges it to the feeding position and permits rocking thereof out of the card path when it passes a card located at a station on its movement. As disclosed, there are three pushers 9 which are adapted to engage a card simultaneously at each station, and the three feedbars 10 supporting the pushers are connected by a common cross-bar 14 engaged in the forked ends of a pair of levers, such as 17, pivoted at 19, and reciprocated by a link 21 having a roller 22 engaging a rotating cam 23. Spring 25 connected with the bars 10, act to restore the bars to the starting positions. There are three stations 2, 3 and 4, and each is provided with locating pins 31 which pass through holes in the cards and prevent the latter being moved on the return of the pushers 9. Leaf springs 32 press against the cards as they are being fed. There are four sets of pushers 9, the first three of which advance a card to and from stations 2, 3 and 4. The fourth pusher 9 is arranged to remove the bottom card from a pile in a magazine 1 and feed it to station 2.
Patent GB-751901-A (GB)
Title: A pressure-fluid actuated motor
IPC: F01B17/00
Filed: 1954-05-31
Abstract: 751,901. Engine valve-gear. TECALEMIT, Ltd. May 31, 1954 [June 9, 1953], No. 16089/54. Addition to 742,419. Class 122(2) In a pressurefluid actuated motor as described and claimed in the parent Specification, the slide valve actuating rod 17 is balanced by connecting the bore 69 in which the upper or outer end 17b of the rod slides with a duct communicating with the fluid, inlet duct 9a to the top of the main piston cylinder 20. The valve rod 17 slides in bores 68, 69 in coaxial sleeves 66, 67 in the cylindrical valve housing 21 and the upper or outer sleeve 67 is closed by a cap 70 sealed to the housing 21 by a packing ring 71. The fluid inlet duct 9a is connected to the bore 69 by means of a duct 72, the space 73 between the cap 70 and the housing 21, and slots 74 in the sleeve 67. Pressure fluid is supplied to the valve housing 21 through a bore in a lateral plug 64 therein.
Patent GB-1021267-A (GB)
Title: Device for threading the leading portion of a cine-film in cine-projectors
IPC: G03B1/56
Filed: 1963-04-24
Abstract: 1, 021, 267. Cine film threading mechanisms. Y. SAKAKI. April 24, 1963, No. 16116/63. Heading G2E. Sprockets 20, 21 rotate on a pair of members 22, 23 movable towards and away from each other by a manually operated element 24 through levers 26, 27 and a linkage 28. Levers 26, 27 engage members 22, 23 through pin and slot connections, and the sprockets are driven by a common drive, as in Fig. 4 (not shown), through worm gear mechanism 32, 33, 34, 35 by means of driven shaft 30. In use, element 24 is moved to the position shown in dotted lines thus moving the sprockets apart, and through toggle mechanisms 36, 38, moving pressure plate 16 away from the gate aperture plate 14. Film F is then threaded in a straight path shown in dotted lines in Fig. 3, and member 24 is moved to the full-line position of Fig. 2 and sprockets 20, 21 and pressure plate 16 are thus returned to their initial positions thereby forming film loops. Loopforming pushing members 42, 44 may be included which are retracted to the dotted line position at Fig. 3 when the pressure plate is raised.
Patent GB-1503987-A (GB)
Title: Process for preparing 1,1,1-trichloro-ethane
Inventor: BOOZALIS THEODORE STEVE
IPC: C07C17/06
Filed: 1975-04-18
Abstract: 1503987 1,1,1-Trichloro ethane DOW CHEMICAL CO 18 April 1975 [22 April 1974 (3)] 16152/75 Heading C2C 1,1,1-Trichloroethane is produced by (a) reacting ethylene and hydrogen chloride, wherein the hydrogen chloride is obtained from another step in the process, in the presence of aluminium chloride catalyst to produce ethyl chloride; (b) reacting said ethyl chloride and recycled ethyl chloride and 1,1-dichloroethane with chlorine at a temperature of 400 to 550 C.; (c) subjecting the reaction mixture from (b) to a liquid quench, thus producing (1) a gaseous product mixture comprising hydrogen chloride, vinyl chloride, and vinylidene chloride, and (2) liquid product; (d) returning a minor portion of said liquid product to the quench zone, and either (A) mixing the remaining portion of said liquid product with or without separating 1,1-dichloroethane therefrom with the gaseous product mixture formed in (c) (1), or (B) dehydrochlorinating the remaining portion of said liquid product thus converting the major portion of the 1,1,1-trichloroethane to vinylidene chloride and mixing the vinylidene chloride so formed with the gaseous product mixture formed in (C) (1); and hydrochlorinating the mixture in (A) or (B) to form a second product mixture comprising hydrogen chloride, ethylene, ethyl chloride, vinyl chloride, vinylidene chloride, 1,1-dichloroethane, cis- and trans - 1,2 - dichloroethylenes, 1,1,1, - trichloroethane, ethylene dichloride, trichloroethylene, 1,1,2-trichloroethane and unsymmetrical tetrachloroethane; (e) separating the hydrogen chloride, ethylene, ethyl chloride, vinyl chloride, and vinylidene chloride from said second product mixture; (f) separating from the remaining portion of said second product mixture 1,1-dichloroethane and the cis- and trans-1,2- dichloroethylenes; (g) separating 1,1,1-trichloroethane from the portion remaining after the separation in (f).
Patent GB-778946-A (GB)
Title: Improvements in or relating to the preparation of isophthalic acid
Inventor: FORTUIN JAN PIETER
Filed: 1954-06-01
Abstract: Isophthalic acid is prepared by a process wherein m-di-isopropylbenzene is oxidized by means of oxygen or a molecular oxygen-containing gas in a liquid medium comprising an organic solvent for the m-di-isopropylbenzene and in the presence of a catalyst comprising a manganese compound together with either a cobalt compound or both a cobalt compound and a barium compound. The process is preferably carried out at pressures between about 2 and about 50 atmospheres and at temperatures between about 60 DEG  and about 300 DEG  C.  Catalyst compounds specified are oxides, chlorides, nitrates, sulphates, acetates, salicylates, butyrates, octoates, toluates, propionates and chelate complexes with diketones such as cobalt isovalerylacetonate or acetoacetonate. Preferred metal salts are those derived from carboxylic acids containing 2-8 carbon atoms in the molecule.  Specified solvents are chlorobenzenes, benzene, diphenyl, tert.-butylbenzene, carbon tetrachloride, sym-tetrachloroethane, phenylacetic acid and saturated fatty acids containing 2-8 carbons atoms in the molecule, which are preferred, such as acetic, propionic, n- and iso-butyric, n-valeric, trimethylacetic, caproic and n-heptanoic acids and isomers thereof. Isophthalic acid usually precipitates from the reaction mixture as the reaction proceeds and may be removed by filtration, the filtrate being returned to the reaction vessel.  Further amounts of m-di-isopropylbenzene and catalyst may be added intermittently or continuously to the reaction mixture as the oxidation proceeds.  The amount of water in the reaction zone is preferably kept below 3 per cent of the total weight of reactants by known methods.  In examples, mixtures of m-di-isopropylbenzene, propionic acid and a catalyst containing 1 part of cobalt acetate and 2 parts of manganese acetate are oxidized by passing oxygen at about 130 DEG  C., isophthalic acid being collected, and further amounts of m-di-isopropylbenzene and catalyst being added intermittently.
Patent GB-618450-A (GB)
Title: Improvements relating to filling pipes for liquid receptacles
IPC: B60K15/04
Filed: 1946-05-29
Abstract: 618,450. Metal pipes. WESTWOOD RIM & PATENTS, Ltd., and WESTWOOD, S. C. May 29, 1946, No. 16304. [Class 99 (ii)] A pipe for filling tanks with liquid includes a baffle consisting wholly or partly of cupshaped members b which fit within the pipe and have eccentric apertures c so arranged that the liquid follows a tortuous path. Two cups with their bases outwards are separated by a disc e having an aperture f. The baffle is held by indenting the pipe at i, and the cups and disc are located in proper relative positions by a rib h engaging grooves d and a notch g.
Patent GB-1493642-A (GB)
Title: Htgr power plant turbine generator load control system
IPC: H02P9/04
Filed: 1975-04-21
Abstract: 1493642 Superheat and reheat steam control in gas-cooled reactor power plant WESTING- HOUSE ELECTRIC CORP 21 April 1975 [25 April 1974] 16364/75 Heading F4A [Also in Division F1] The basic arrangement described is the same as that disclosed in Specification 1,488,594 with the addition of control system 172 which, in response to a megawatt demand signal from device 170, puts out signals to indicate the desired reheat steam flow through turbines 111  and 112 (along line 173) and to actuate a positioner 176 (along line 174) which operates a governer valve 107 to regulate superheat steam flow through high pressure turbine 108 in predetermined proportionality with the signal from device 170. The arrangement can be employed in a single turbine set but two identical parallel connected sets are disclosed; however the following description will relate to one of these sets only. The control system 172 (identical to system 182) is shown on Fig. 4. The intercept valve 127 and control system 146 operate as described in the above mentioned Specification, but device 139 has been replaced by an output from the system 172. This output is the result of a comparison in device 410 of the actual (measured by transducer 409) and desired (generated by device 408) pressure in the first stage of intermediate turbine 111 at the required megawatt demand. Two settings of the system 172 for control of valve 107 are possible. When switch 402 is set to position b (at 0-25% load levels) function generator 401 acts on the positioner 176 in predetermined proportionality with the megawatt demand signal. At load levels above 25% switch 402 is set to position a and the positioner 176 receives signals from a comparator 406 which acts in response to signals from device 404 which represents the desired pressure in the impulse chamber of turbine 108 and transducer 405 which measures the actual pressure in that chamber.
Patent GB-1100097-A (GB)
Title: Explosive composition
IPC: C06B47/00
Filed: 1966-04-14
Abstract: An explosive composition comprises an inorganic nitrate, concentrated nitric acid, and an organic fuel which is miscible with and does not react with nitric acid.  Preferably, the inorganic nitrate is NH4NO3 or KNO3 and the strength of the HNO3 is at least 90%.  The compound NH4NO3.2HNO3 may be formed when the nitrate and the acid are mixed. The fuel may be dinitrotoluene (DNT), trinitrotoluene (TNT), a mixture of TNT and mononitrotoluene, or a mixture of DNT and dinitrobenzene. A liquid mixture of 98% HNO3 and NH4NO3 may be mixed with the molten fuel by pumping together into a borehole.  The explosive sets soon after mixing to a solid water-resistant substance.  In order to vary the velocity of detonation of the explosive, the fuel may include a substance which reacts with the acid to produce gas; such substances are methylene bis-(monomethylnaphthylene sodium sulphonate), diphenylamine, aniline, creosote, o-toluidine, p-cresol, or acetone.
Patent GB-587717-A (GB)
Title: Improvements in shuttering for casting in situ concrete or like pillars of buildings
IPC: E04G13/02
Filed: 1944-11-07
Abstract: 587,717. Casting pillars in situ. CLARK, C. Nov. 7, 1944, No. 16424/43. [Class 20 (ii)] Shuttering for casting in situ concrete or like piers or pillars to receive walling, partitions or the like comprises pressed metal sheets 35, 38, each sheet having a flange 37 or 40 on one edge to receive and overlap an edge of an adjacent sheet when the sheets are assembled, the sheets which are to form the faces of the pillar that are to receive the walling members having spaced projections 36 on the inner surface to form vertical recesses in the cast pillar. The walling members 41, 42 may either be precast or cast in situ. The shuttering may be erected by being assembled as a lining in a light metal framework, which may be constituted by corner uprights of angle section held together by horizontal struts. Drain passages may be formed in the pillars by using a cylindrical rod or tube which is greased for withdrawal as each succeeding part of the pillar is cast. This is for use where gutters are to be connected to the drain passages, as described in Specification 573,038.
Patent GB-730590-A (GB)
Title: Method of enriching producer gases
IPC: C10J1/213
Filed: 1952-07-01
Abstract: 730,590. Carburetting water gas. HEURTEY & CIE. July 1, 1952 [Jan. 8, 1952], No. 16508/52. Classes 55 (1) and 55 (2). Water gas is enriched by the return to the upper part of the producer, which is occupied by coke partly fed in and not subjected to the heat of carbonization, of oily products obtained by the purification of the gas itself. Water gas plant comprises a generator 1 with a blast duct 6 and blower 7, a water jacket 10 with a valved steam pipe 11 opening into duct 6 and outlet ducts 14, 15, leading the blast and make gases respectively to a boiler furnace 18 and purifying plant 21, e.g. as described in Specification 677,818. In the form shown the different oily condensates are collected in a common pipe 25 for return by a pump 24 to the top of the generator to feed spray nozzles 28. Products from other gas purifying plants or other liquid fuels may be mixed with the condensates.
Patent GB-1521124-A (GB)
Title: Trolley for use in transporting elongate articles
IPC: B66F19/00
Filed: 1976-04-22
Abstract: 1521124 Straddle carrier D McCOLL 22 April 1976 [22 April 1975 16 July 1975] 16512/75 and 29741/75 Heading B8H [Also in Division B7] A trolley for handling elongate articles, such as rolls of carpet or pipes, comprises a pair of load engaging members 1 held in spaced disposition by a pair of inverted U-shaped braces 2 and wheels 3 mounted by way of fluid rams 4 to the free end of the braces whereby the braces, and thus the load engaging members, may be raised relative to a support surface. A hand pump 6 is mounted on a platform 8 which connects the braces, and supplies fluid to the rams.
Patent GB-599690-A (GB)
Title: Improvements in or relating to the production of pyrazine derivatives
IPC: C07D241/08
Filed: 1944-08-30
Abstract: 2-Hydroxypyrazine and 2-aminopyrazine are manufactured by heating the corresponding 3-carboxy derivatives in the presence of a solvent, preferably to 150-190 DEG  C. or above and with stirring. The reaction mixture may be worked up by decolourizing it with the aid of a decolourizing black, filtering and adding a solvent such as petroleum ether to precipitate the desired product.  In examples, 2-amino-3-carboxypyrazine is heated with liquid petrolatum at 195 DEG C., or with n-butyl phthalate at 215-220 DEG  C., or with water at 150 DEG  C. in a bomb, or with carbitol acetate or nitrobenzene under reflux, or with quinoline at 215-7 DEG  C., or with sulphuric acid at 240-5 DEG  C.; or the sodium salt of the acid is heated with sulphuric acid at 240-5 DEG  C., or an aqueous solution of the salt is acidified with hydrochloric acid and the mixture is heated to 150 DEG  C. in a bomb.  In a further example, 2 - hydroxy - 3 - carboxypyrazine is refluxed with carbitol acetate.  Specifications 599,688 and 599,689 are referred to.
Patent GB-860417-A (GB)
Title: Card flats
IPC: D01G15/24
Filed: 1959-05-14
Abstract: 860,417. Clothing for card flats. ABEELE, V. VAN DEN May 14, 1959 [May 28, 1958], No. 16544/59. Classes 120(1) and 120(3) Card clothing comprises a mounting plate 1 with rectilinear, wovilinear or undulated slots, as at 8, which receive toothed blades 2 of hardened steel and determine the spacing therebetween. As shown in Figs. 2 and 4, adjacent slots may be relatively displaced, recessed to accommodate blade heels 7, and/or bevelled, as at E-F. The plate may be of moulded, flexible plastic material (with blades embedded therein) and/or rubber and/or fabric. The plate is secured on a flat 4 by clips 5 or folded, upward extensions of the edges of the body 3, Fig. 10 (not shown). The slots may be slightly oblique in relation to the direction of work and the blades may have sections devoid of teeth 6.
Patent GB-458081-A (GB)
Title: Improvements in woven cloths or fabrics
IPC: D03D1/00
Filed: 1935-06-07
Abstract: 458,081. Wearing - apparel. EATON, F., 6, Church Street, Manchester. June 7, 1935, No. 16549. [Class 141] [See also Group IX] Reversible multiple cloth for semi-stiff collars C, Fig. 5, or cuffs D or reinforced shirt fronts E with coloured stripes &c. of the same width &c. as those in the single ply main fabric B and with the appearance of poplin on both sides, is woven with alternate warp yarns a, Figs. 2 and 3, appearing in each face and with upper and lower wefts b, b<1> separated by tensioned warp yarns c which extend through the cloth in straight lines. As shown in Fig. 2, the yarns c may be emitted at the selvedge. Two warp beams are used. Specification 354,260, [Group IX], is referred to. Reference has been directed by the Comptroller to Specifications 924/02, [Class 142], 383,097, [Group IX], and 391,101.